CVE-2026-71862

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Checkmate is an open-source, self-hosted tool designed to track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations. From 3.3.0 until 3.9.2, enabling the global showURL setting causes the unauthenticated GET /api/v1/status-page/:url endpoint to return complete monitor objects from server/src/controllers/statusPageController.ts. The response includes the secret field used by HttpProvider.ts as an HTTP Authorization credential, even though BaseStatusPage.tsx does not display that value, allowing visitors to extract credentials from the JSON response and use them against monitored services. This issue is fixed in version 3.9.2.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-200CWE-522

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-10-20: 110-20
Full discourse1 post
  • DFIR Lab@DFIR_Lab

    🚨 HIGH Severity: CVE-2026-71862 (CVSS 7.5) Checkmate monitoring tool exposes HTTP Authorization credentials via unauthenticated API endpoint. Versions 3.3.0-3.9.1 affected. ✅ Update to 3.9.2 immediately #CVE #Vulnerability #PatchNow https://t.co/EC3OgeHKkr

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